Overview. Complex carbohydrates are made up of sugar molecules that are strung together in long, complex chains. Complex carbohydrates are found in foods such as peas, beans, whole grains, and vegetables.
Confidence votes 11.2K. Taught College level A&P for 27 years. The lens in the human eye is a convex lens, but it is flexible and when it is acted on by the ciliary muscle around it, the lens can be flattened to change the focus, or, when the muscle is relaxed, the lens can assume a more spherical shape.
lens of the eye-biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina. crystalline lens, lens. organ-a fully differentiated structural and functional unit in an animal that is specialized for some particular function.